<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div>
        <img src="../assets/logo.png" style="height: 30px" alt="" />
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button></el-header
    >
    <!-- 页面主体区域 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse ? '64px' : '200px'">
          <div class="toggle-button" @click="toggleCollapse">|||</div>
          <!-- 侧边栏菜单区域 -->
        <el-menu
          background-color="#333744"
          text-color="#fff"
          active-text-color="#409FFF"
          :unique-opened="true"
          :collapse="isCollapse"
          :collapse-transition="false"
          router
          :default-active="activePath"
        >
        <!-- 一级菜单 -->
          <el-submenu :index="item.id + ''" v-for="item in menulist" :key="item.id">
              <!-- 一级菜单模板区域 -->
            <template slot="title">
                <!-- 图标 -->
              <i :class="iconObj[item.id]"></i>
              <!-- 文本 -->
              <span>{{item.authName}}</span>
            </template>        
            <!-- 二级菜单 -->
              <el-menu-item :index="'/' + subItem.path" v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/' + subItem.path)">
                   <template slot="title">
                <!-- 图标 -->
              <i class="el-icon-menu"></i>
              <!-- 文本 -->
              <span>{{subItem.authName}}</span>
            </template>     
              </el-menu-item>
            </el-submenu>
             
        </el-menu>
      </el-aside>
      <!-- 页面主体区域 -->
      <el-main>
          <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>
<script>
export default {
    data(){
        return {
            menulist:[],
            iconObj: {
            '125': 'iconfont icon-user',
            '103': 'iconfont icon-tijikongjian',
            '101': 'iconfont icon-shangpin',
            '102': 'iconfont icon-danju',
            '145': 'iconfont icon-baobiao'
            },   
            isCollapse: false ,
            activePath:''
            
        }
    },
    created(){
        this.getMenuList()
        this.activePath = window.sessionStorage.getItem('activePath')

        
    },
  methods: {
    logout() {
      
      window.sessionStorage.clear()
      this.$router.push('/login')

      
    },
    async getMenuList(){
        const {data:res} = await this.$http.get('menus')
        if(res.meta.status !== 200) return this.$message.error(res,meta,msg)
        this.menulist = res.data
        // console.log(res.data)

    },
    toggleCollapse(){
        this.isCollapse = !this.isCollapse
    },
    saveNavState(activePath){
        window.sessionStorage.setItem('activePath',activePath)
        this.activePath = activePath
    }
  }    
}
</script>

<style lang="less" scoped>
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}
.el-aside {
  background-color: #333744;
  .el-menu {
      border-right: 0;
  }
}
.el-main {
  background-color: #eaedf1;
}
.toggle-button {
    background-color: #4a5064;
    line-height: 24px;
    font-size: 10px;
    color: #fff;
    text-align: center;
    cursor: pointer;
    letter-spacing: 0.2em;
}
</style>